switched capacitor filter 中文意思是什麼
switched capacitor filter
解釋
開關電容濾波器-
The design of the switched capacitor filter is one of the research focuses in circuit and system
開關電容濾波器設計是電路與系統領域里的研究熱點之一。 -
The paper first reviews the research background and actuality of the filter " s design in china and other country, introduces the meaning of the project and the work of the paper, narrates the theory of the switched - capacitor network and the basic switch building blocks, analyses the related factors of the design of sc filter. such as the selection of the architecture, the trade off of the opamp " s gain, bandwidth, phase margin, slew rate and setting time, the effect of the switch " s on resistor, how to reduce the charge injection and the clock feed - through, the power consumption and the selection of the sampling frequency and so on
本文首先回顧了濾波器設計的國內外研究背景和現狀，介紹了本課題提出的意義以及本文的主要工作，論述了開關電容網路原理和基本開關模塊，分析了開關電容濾波器設計的相關因素：電路結構的選擇，對運算放大器設計中高增益、寬帶寬、相位裕度、轉換斜率和建立時間等的折中考慮，開關的打開電阻對電路的影響，開關電容電路中怎樣減少電荷注入和時鐘饋通，以及整個電路的功耗問題和采樣頻率的選擇等。 -
There are two methods to realize the function of the switched capacitor filter : dual - two order method and z - domain method. this thesis emphasizes to introduce the two methods and realize the functions with the two methods
開關電容濾波器的實現方法主要有兩種：雙二階法和z域法，本文著重介紹了這兩種實現方法並分別用這兩種方法對開關電容濾波器的功能進行了實現。 -
In the switched capacitor filter circuit, the properties of the operational amplifier influences the whole circuit severely, so this thesis introduce a typical operational amplifier that has two orders and tests the main properties of it
開關電容濾波器中，運算放大器的性能對整個濾波器的性能有著較大的影響，因此本文介紹了一種典型的兩級運算放大器的設計方法，並對該運算放大器的性能進行了測試。 -
According to the specification and the scheme three architectures including a gmc ( transconductor capacitor ) filter, a sc ( switched capacitor ) filter and a si ( switched current ) filter are researched and implemented, simulated in 0. 18m cmos process. the results are as expected
根據系統要求及設計方案，分別研究並得到了跨導電容、開關電容和開關電流三種濾波器結構，採用0 . 18mcmos工藝進行模擬，其結果與預期的基本符合。 -
In the fourth chapter, a fourth - order chebyshev low - pass filter employs new low voltage, highly linear, wide inputting range transconductor is proposed, then we presents a new circuit to tune gm value of transconductor accurately, which employs a new switched - capacitor circuit to change the bias current of transconductor, a third order elliptical function low - pass filter with accurate tunable frequency has been designed using transconductor that is not only with voltage common - mode negative feedback, but also with varying bias - triode transistors which can improve the linearity of this circuit
第四章：提出了一種新的低電壓、高線性度、寬輸入范圍跨導，並由此設計實現了四階切比雪夫（ chebyshev ）低通濾波器，接著提出了一種寬輸入范圍且具有電壓共模負反饋的全差分跨導，並採用一種新的開關電容電路實現跨導值gm精確可調，從而可以設計得到高性能具有精確截止頻率的跨導-電容三階橢圓函數濾波器。 -
Continuous - time filter needn ’ t a / d switch, data processing, d / a switch technique and so on to finish filtering function with analog signal like digital filter. and it needn ’ t switch action to sample data in the discrete time with analog signal like switched capacitor filter. so continuous - time filter has several advantages, such as high processing speed, simple circuit configuration, and low power consumption
對每種方法都進行了詳細的推導，總結了每種設計方法的設計步驟、適用場合，舉例用每種設計方法對具體濾波器進行了電路設計、靈敏度特性分析、失真特性分析等，並用計算機模擬驗證了電路方案。 -
Also thesis gives a code that can optimize the parameter of the switched capacitor filter when using the z - domain method
在設計的過程中，為z域法濾波器的參數的優化，設計了一個程序。
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